Hazards Caucus Alliance Briefing
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1 Monitoring Volcanoes: Reducing the Risks of Volcanic Hazards for Society Hazards Caucus Alliance Briefing June 25, 2018 Charlie Mandeville USGS Volcano Hazards Program Coordinator
2 USGS Volcano Hazards Program Mission: The Volcano Hazards Program (VHP) enhances public safety through forecasts and warnings of volcanic activity. Core Responsibilities: Hazard assessments, monitoring of potentially active volcanoes, research and communication. Okmok Caldera July 13, 2008 Impact: We give people time to prepare. Information to increase their resilience, and reduce their vulnerability. Volcano emergency response plans developed with stakeholders well before a volcanic crisis Photo courtesy of Kelly Reeves, Alaska Airlines
3 USGS Volcano Hazards Program Hawaiian Volcano Observatory monitors Hawaiian volcanoes, Centennial anniversary in Jan Alaska Volcano Observatory monitors Alaskan and CNMI volcanoes Cascades Volcano Observatory Monitors WA, OR, ID volcanoes California Volcano Observatory monitors CA and NV volcanoes, as of February Yellowstone Volcano Observatory, YNP, ID, NM, AZ, CO, UT
4 Volcano Disaster Assistance Program Working behind the scenes in the developing world since 1986 Fuego Sinabung v
5 Volcano Monitoring Fortunately, volcanoes exhibit precursors typically weeks to months before eruption, though some that erupt often can be reactivated quickly (hrs. days) Ground-based instrumentation is crucial for detection of unrest at the earliest stages. All data available are utilized Precursors include: Volcano deformation (inflation) Changes in snow or ice cover Increased seismicity Changes in gas emanation Anomalous high temperature pixels in TIR remote sensing imagery from satellites Changes in groundwater and stream geochemistry Forecasts depend on understanding the interplay of seismicity, deformation and gas emission
6 Deformation of Mt Peulik Volcano Mt Peulik Volcano Becharof Lake Mt Peulik Stratovolcano Last eruption >160 years ago M5.1 M4.8 Littoral cone M5.2 Ukinrek Marrs Mt Peulik Ugashik Progressive inflation of 24 cm during Seismic swarms in May 1998 Lu et al., JGR, 2002
7 Gas Emissions Recent developments in UV/IR cameras and portable multi-gas spectrometers and DOAS scanner networks are making real-time gas flux measurements at active volcanoes a reality. Dr. Maarten de Moor performing maintenance on one of the NOVAC DOAS scanners installed at Turrialba that OVSICORI uses to monitor SO 2 emissions in real time. New multi-gas sensor installed at summit of Augustine volcano, Cook Inlet, AK June 14, 2015
8 VDAP Response to ongoing volcano crisis at Fuego Volcano, Guatemala USGS-USAID Volcano Disaster Assistance Program has sent a geophysicist and lahar subject matter expert to Guatemala to assist with lahar awareness, planning and monitoring network design. VDAP staff are working with INSIVUMEH scientists and emergency responders (CONRED) to raise lahar awareness and delineate lahar and pyroclastic flow hazard zones. Fuego in eruption Feb. 1, 2018 Image courtesy of NASA Earth Observatory Fuego in eruption June 3, 2018 generates deadly pyroclastic flow discharged to the southeast flank of the volcano Image from Santiago Billy/Associated Press An international team of scientists from INSIVUMEH, University of Edinburgh, Michigan Technological Univ. have generated and distributed preliminary lahar (and pyroclastic flow) hazard maps for moderate and more intense rain activity on June 10, 2018.
9 Kilauea eruption update Fissure 8 feeding a channelized lava Flow reaching the ocean at Kapoho Minor oozing of lava at fissures 16/18 At Kilauea summit, seismicity and subsidence continues. Explosions with ash emission to 8000 to 10,000 ft.
10 USGS Response to Kilauea eruption The USGS Hawaiian Volcano Observatory is working closely with Hawai i County Civil Defense, Hawai i State Emergency Management, the National Park Service, FEMA and others to prepare for continued outbreak of lava threatening people and developed areas. USGS has 24/7 presence in the lava flow areas where USGS geologists and a USGS-OAS Unmanned Aircraft System Team track fissure activity and the advancement of lava flows. Sixteen USGS scientists from the other USGS volcano observatories and other USGS centers are on site in Hawaii assisting the Hawaiian Volcano Observatory (HVO). Using data from real-time networks of seismometers, tiltmeters, GPS and other instruments, data from satellite, UAS, and field observations, USGS scientists at HVO closely monitor activity for signs that hazardous conditions have increased, or may increase. Staff at other USGS volcano observatories are assisting in the response with public affairs, operations, and scientific interpretation. Other USGS staff and resources such as satellite data acquisition, Office of Communications, and supercomputing are assisting. USGS has a scientist 24/7 at the County Emergency Operations Center in Hilo. USGS has a missionassigned subject matter expert to the FEMA Incident Management Assistance Team in Hilo. A second USGS scientist is splitting time between the County s emergency response team and the IMAT. A third scientist is embedded with the County Emergency Operations Center on Oahu. The USGS, Hawai I Volcanoes National Park, and Hawaii County Civil Defense have scheduled daily media briefings. The local, national, and international media interest remains high. HVO is communicating with the public concerning the on-going situation through media, fielding direct inquiries, through its website and cooperation with Civil Defense. Key Partners Hawai i County Civil Defense, Hawai i State Emergency Management, the National Park Service, FEMA, NOAA/National Weather Service, NASA, U.S. Army Corps of Engineers
11 What Comes Next? Monitoring data are consistent with continued accumulation of magma within the East Rift Zone. It is unknown whether the flows will continue to advance, or stop, and new lava flows are likely given the rate of activity seen at the rift zone. Additional outbreaks of lava are expected. It is not possible at this time to say when and where new vents may occur. Existing fissures may also be reactivated. Lava entrance to the ocean will continue to cause laze plumes (a corrosive mixture of steam, hydrochloric acid and volcanic glass particles) that can irritate the skin eyes, and lungs and make breathing difficult. These plumes need to be avoided at shore and at sea. At any time, activity at Kīlauea s summit may again become more explosive, increasing the intensity of ash production and producing ballistic projectiles very near the vent. Communities downwind should be prepared for ashfall as long as this activity continues. Ash could reach altitudes greater than 20,000 ft above sea level and pose a threat to aviation. Earthquakes in the summit area continue, as does deflation of the summit region. The earthquakes and ash explosions are occurring as the summit area subsides and adjusts to the withdrawal of magma from the summit.
12 Hawai i Volcanoes National Park status is posted on their web page: Thank You! Questions? For more information see: Updates on activity will be posted on the HVO website at You can receive these updates by through a free subscription service: Resource on volcanic ash hazards: Fissures #2 and #7 in eruption on 5/5/18 Resource on vog: Hawai i County Civil Defense will issue its own hazard notices should that become necessary:
13 At Kilauea s summit potential for explosive ash forming eruptions Ash-rich plume on May 16 On May 15, HVO issued a Volcano Observatory Notice for Aviation and raised color code from Orange to Red due to increased intensity of ash emission from Overlook Crater within Halema uma u. Photo of Kilauea s Halema uma u crater in eruption May 18, Photo from northwest rim of Kilauea summit present site of HVO At 4:15 am HST on May 17 an explosion of a few minutes from Overlook Crater within Halema uma u produced an ash plume to 30,000 feet confirmed by NOAA/NWS NEXRAD radar.
14 Pahala Town Hall Meeting on Ash Fall and Vog Tina Neal, Scientist-in-Charge of HVO and David Damby of USGS Talmadge Magno, Hawaii County Civil Defense Administrator, Wendy Stovall of USGS Cascades Volcano Observatory USGS scientists working with Hawaii County Civil Defense Emergency responders to give the public the information and resources they need to protect themselves from ash fall and vog hazards.
15 The Need for Volcano Monitoring around the Pacific There are ~1550 active volcanoes on Earth and more than 950 of these surround the Pacific Ocean Several hundred of these have erupted in historical time Pacific rim volcanoes tend to erupt explosively, injecting ash to commercial flight levels 61,300 persons travelling over North Pacific air routes daily
16 UAS flight provides spectacular view inside Halema uma u crater Intense steaming from new collapse pit to north New cracks and faults reflect ongoing subsidence Footage shows rubble covered floor from recent wall collapse Video image May 31, 2018 from USGS UAS OAS Dept. of Interior Special Thanks to NASA Ames for engineering live video streaming on USGS-OAS UAS
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